Answer:
The Attachment has the answer
Step-by-step explanation:
Two negatives combined equals a positive, or an addition sign in this case. so t-(-5) is equal to t+5=10. t is equal to 5
Answer: -2
Step-by-step explanation:
Answer:
y ≈ 5.2
Step-by-step explanation:
∠ F = 180° - (42 + 48)° ← sum of angles in a triangle
∠ F = 180° - 90° = 90°
Thus Δ DEF is right at F
Using the sine ratio in the right triangle
sin48° = = = ( multiply both sides by 7 )
7 × sin48° = y , then
y ≈ 5.2 ( to the nearest tenth )